Personalized Choir Or Marching Band Treble Music Gift Youth T-Shirt. Treble clef music Youth T-Shirt - White with yes I'm treble humor quote for marching band, choir soprano singer, orchestra or a piano student. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.